<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png"
             alt="">
      </div>
      <!-- 登录表单 -->
      <el-form :model='loginForm'
               :rules="loginRules"
               ref="loginRef"
               label-width="0px"
               class="login_form">
        <!-- 登录名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username"
                    prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password"
                    type="password"
                    prefix-icon="iconfont icon-3702mima"></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary"
                     @click="login">登录</el-button>
          <el-button type="info"
                     @click="resetForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 15, message: '长度在 3 到 15 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetForm () {
      this.$refs.loginRef.resetFields()
    },
    login () {
      this.$refs.loginRef.validate(async ValRes => {
        // console.log(res)
        if (!ValRes) return
        const { data: resData } = await this.$http.post('login', this.loginForm)
        if (resData.meta.status === 200) {
          this.$message.success('登录成功 !')
          // 将 token 保存在 sessionStorage 中
          window.sessionStorage.setItem('token', resData.data.token)
          // 跳转路径 hash值,直接在浏览器端切换一个子组件显示
          this.$router.push('/home')
        } else {
          this.$message.error('用户名或密码错误 !')
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #09a;
  width: 100%;
  height: 100%;
  // width: 1000px;
  // height: 1000px;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
